The eleventh edition of the Serbian Network Operators Group conference – RSNOG, held on 13 November 2025 at the Yugoslav Film Archive in Belgrade, brought together 200 experts from the telecommunications and information technology industries. Participants discussed trends and experiences in the fields of Internet networking, cybersecurity, and artificial intelligence.
The conference opened with a presentation by Strahinja Kustudić from Nordeus, who presented a fascinating story how Nordeus grew from a small team with two servers making games in a garage into a global tech infrastructure that today supports more than 300 million users around the world.
Prof. Dr. Dejan Vukobratović from the Faculty of Technical Sciences of the University of Novi Sad and the Institute for Artificial Intelligence presented projects that combine machine learning with large numbers of sensor devices, such as drones or floating devices used to measure water quality.
Katarina Stefanović, a wireless access network optimization engineer at Telekom Srbija and a RIPE Atlas Ambassador, spoke about the rise of next-generation satellite Internet networks such as Starlink, the path of their integration with terrestrial mobile networks, and the new applications enabled by the integration of these technologies.
A guest from Sweden, Ulrich Wisser from ICANN, presented RDAP, a new protocol for accessing Internet domain registration data. RDAP brings greater security, transparency, and improved user privacy protection, as well as new capabilities such as more efficient searching of databases of registered domains and their owners.
Jelena Ćosić from the RIPE NCC announced a major gathering of the Internet community of Southeast Europe, to be held in late April 2026. RIPE SEE 14 is coming to Belgrade after a decade-long wait.
Aleksa Miljković from the mobile operator A1 shared the operator’s experience in internally organizing and collecting hundreds of ideas for broader and more effective application of artificial intelligence, while preserving data privacy.
Dragan Ilić from Palo Alto Networks analyzed the latest threats to the global DNS system, one of the pillars of the Internet, which nevertheless receives 295 million malicious requests daily. He also presented best practices for effective protection of this service.
Viktor Varga from Unicom Telecom presented techniques for detecting attacks before they occur. He spoke about attack surface mapping and artificial intelligence models that detect suspicious events or activities.
Đorđe Hirš from the telecom operator Yettel discussed the use of artificial intelligence models for speech recognition and the analysis of large volumes of requests sent to customer support, in order to better understand user needs. He emphasized that small AI models, tailored to specific terminology, service offerings, and business processes of an operator, often deliver significantly better results than general-purpose large language models, while noting that there remains considerable room for further improvement in this area, particularly concerning the Serbian language.
Dr. Jovan Vujasinović from VF Holding spoke about how networks of connected sensors help monitor energy consumption and promote energy efficiency. He highlighted that artificial intelligence is becoming a key component of modern energy systems, as it enables the analysis of large volumes of data, pattern recognition, and decision-making that optimizes energy production, consumption, and distribution.
Slobodan Marković from UNDP analyzed the latest trends in cybersecurity together with Marko Elazar from Nova Defense. Elazar stressed that “we are facing the greatest technological leap of our times – the rise of artificial intelligence – not as a community, but as individuals,” and that only through a united front across the broader ecosystem, by combining knowledge and resources, can we more effectively address the security risks brought by artificial intelligence.
This was well complemented by Stevan Vučić from the company UN1QUELY, who presented the most common cybersecurity lapses his team observes in the networks of large enterprises and industrial systems around the world.
Sašo Dimitrijoski, President of the Board of Macedonian Telecom, offered a personal perspective on the state of the telecommunications market in the Western Balkans region. He pointed out that all operators in the region play an important role in the digital transformations of their countries, while also undergoing transformations themselves to enable the adoption of new technologies such as 5G or AI. He also emphasized the importance of focusing on user experience. Some locations, such as the city of Skopje, have become fully covered by optical networks, but the transition to fiber everywhere will take many more years, and we must not lose sight of the users who haven’t transitioned to the fiber yet, and ensure they receive the quality they deserve using existing technologies.
Dejan Dramićanin from the company Bitgear presented a wide range of applications of sensor networks and devices that are designed and manufactured entirely in Serbia. One of the showcased applications was a project with Telekom Srbija that fully resolved the problem of unauthorized access to manholes and underground infrastructure.
A guest from Slovenia, Jan Žorž, a world-renowned expert on the IPv6 protocol, presented best technical and organizational practices that operators can apply to ensure rational use of IPv6 addresses and optimize the user experience for their customers.
At the end of the conference, a traditional prize quiz was held for all participants, both on-site and online.
The RSNOG conference was organized under the patronage of the RNIDS Foundation, and the companies Unicom Telecom and SOX. Support was provided by sponsors Pulsec powered by Telekom Srbija, Yettel, A1, Palo Alto Networks, RIPE NCC, and Data Cloud Technology, as well as conference friends Unlimited.rs, ICANN, Orion Telekom, Beenet, and the Zelendata Center.